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福州鼓山地区A型花岗岩中碱性暗色矿物特征及其地质意义
期刊论文 | 2025 , 41 (1) , 112-134 | 岩石学报
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Abstract :

岩浆作用的不同时期、不同种属的碱性暗色矿物的矿物学信息能反演岩浆演化过程.本文对福建福州鼓山地区的晶洞花岗岩进行了主微量元素、锆石U-Pb同位素定年、Lu-Hf同位素分析,并对其特征暗色矿物进行了电子探针微区分析.鼓山花岗岩发育典型的钠铁闪石、霓石等碱性暗色矿物,地球化学特征表现为高硅、富碱、贫镁钙、低铁铝,属于准铝质到过碱质岩石;其LREE富集,HREE亏损,具有Eu负异常的特征,均显示K、Rb、Th、U等元素相对富集,Ba、Sr以及高场强元素Nb、Ta、P、Ti相对亏损,为典型的高分异的碱性A型花岗岩.LA-ICP-MS锆石U-Pb年龄在95Ma左右,指示其形成时代为晚白垩世早期.锆石的平均ΔFMQ=+5.36,表明岩浆具有较高的氧逸度,钠铁闪石和霓石等碱性暗色矿物形成于岩浆演化的晚期阶段.霓石显示出其高硅、高钠、高铁,低钛、镁、铝、锰的特征.钠铁闪石具有富碱、高铁、多硅、贫钙的特征.碱性花岗岩的锆石εHf(t)值范围为-1.8~+5.4,二阶段模式年龄tDM2为810~1278Ma,岩浆源区为同期底侵的富集地幔来源的陆壳岩石在高温下部分熔融形成,形成于太平洋板块俯冲后撤背景下的伸展环境.

Keyword :

A型花岗岩 A型花岗岩 岩石成因 岩石成因 福州鼓山 福州鼓山 钠铁闪石 钠铁闪石 霓石 霓石

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GB/T 7714 邓心禾 , 王力圆 , 徐净 et al. 福州鼓山地区A型花岗岩中碱性暗色矿物特征及其地质意义 [J]. | 岩石学报 , 2025 , 41 (1) : 112-134 .
MLA 邓心禾 et al. "福州鼓山地区A型花岗岩中碱性暗色矿物特征及其地质意义" . | 岩石学报 41 . 1 (2025) : 112-134 .
APA 邓心禾 , 王力圆 , 徐净 , 陈素余 . 福州鼓山地区A型花岗岩中碱性暗色矿物特征及其地质意义 . | 岩石学报 , 2025 , 41 (1) , 112-134 .
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福州鼓山地区A型花岗岩中碱性暗色矿物特征及其地质意义
期刊论文 | 2025 , 41 (01) , 112-134 | 岩石学报
Characteristics and geological significance of alkaline mafic minerals in A-type granite in Gushan area, Fuzhou SCIE
期刊论文 | 2025 , 41 (1) , 112-134 | ACTA PETROLOGICA SINICA
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Abstract :

The magmatic evolution process can be reconstructed by using the mineralogical data from various alkaline mafic minerals from different stages of magmatism. This study presents an integrated bulk-rock elemental composition, zircon U-Pb dating, Lu-Hf isotopic geochemistry, and electron probe microregion analysis of key mafic minerals in miarolitic granites from Gushan area, coastal Fujian Province. The Gushan granite hosts typical alkaline mafic minerals, such as arfvedsonite and aegirine, characterized by high silicon content, alkali enrichment, low magnesium and calcium, and reduced iron and aluminum levels. These rocks are classified as para-aluminous to peralkaline and exhibit negative Eu anomalies, enrichment in light rare earth elements (LREE), and depletion in heavy rare earth elements (HREE). Granites are enriched in K, Rb, Th, U, while being depleted in Ba, Sr and high field strength elements Nb, Ta, P and Ti, identifying them as highly fractionated alkaline A-type granites. LA-ICP-MS zircon U-Pb dating yields an age of approximately 95 Ma, indicating their formation in early Late Cretaceous. The average Delta FMQ of zircon is +5.36, indicating that the magma possessed a high oxygen fugacity. Alkaline mafic minerals such as arfvedsonite and aegirine crystallized during the late stage of magmatic evolution. Aegirine characterized by high silicon, sodium and iron contents, along with low titanium, magnesium, aluminum and manganese. Arfvedsonite exhibits enrichment in alkali and iron, high silicon content, and depletion in calcium. The zircon epsilon(Hf) (t) values of the alkaline granite range from -1.8 to +5.4, with two-stage model ages (t(DM2)) spanning from 810 Ma to 1278 Ma. The magma source is attributed to partial melting of enrich mantle-derived continental crust rocks formed during contemporaneous underplating. This process occurred in an extensional environment driven by the subduction and rollback of the Pacific plate.

Keyword :

Aegirine Aegirine Arfvedsonite Arfvedsonite A-type granites A-type granites Fuzhou Gushan Fuzhou Gushan Petrogenesis Petrogenesis

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GB/T 7714 Deng, Xinhe , Wang, Liyuan , Xu, Jing et al. Characteristics and geological significance of alkaline mafic minerals in A-type granite in Gushan area, Fuzhou [J]. | ACTA PETROLOGICA SINICA , 2025 , 41 (1) : 112-134 .
MLA Deng, Xinhe et al. "Characteristics and geological significance of alkaline mafic minerals in A-type granite in Gushan area, Fuzhou" . | ACTA PETROLOGICA SINICA 41 . 1 (2025) : 112-134 .
APA Deng, Xinhe , Wang, Liyuan , Xu, Jing , Chen, Suyu . Characteristics and geological significance of alkaline mafic minerals in A-type granite in Gushan area, Fuzhou . | ACTA PETROLOGICA SINICA , 2025 , 41 (1) , 112-134 .
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Characteristics and geological significance of alkaline mafic minerals in A- type granite in Gushan area, Fuzhou; [福州鼓山地区A 型花岗岩中碱性暗色矿物特征及其地质意义] Scopus
期刊论文 | 2025 , 41 (1) , 112-134 | Acta Petrologica Sinica
Characteristics and geological significance of alkaline mafic minerals in A- type granite in Gushan area, Fuzhou EI
期刊论文 | 2025 , 41 (1) , 112-134 | Acta Petrologica Sinica
福建新生代玄武岩及其地幔包体的矿物学特征——对岩石圈地幔性质的制约
期刊论文 | 2025 , 55 (02) , 463-482 | 吉林大学学报(地球科学版)
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福建新生代玄武岩广泛发育且携带了大量地幔包体,其矿物元素特征能够反演岩石圈地幔性质。本文对福建沿海的厦门及内陆地区的明溪、闽清等地新生代玄武岩及其橄榄岩包体中的矿物进行了电子探针、单斜辉石LA-ICP-MS微量元素和原位Sr同位素分析,探究福建地区岩石圈地幔属性特征及演化历史。结果表明:玄武岩及其橄榄岩包体中单斜辉石主要为透辉石,橄榄岩包体根据矿物学特征分为A、B两组,A组(Mg

Keyword :

原位Sr同位素 原位Sr同位素 岩石圈地幔 岩石圈地幔 新生代玄武岩 新生代玄武岩 橄榄岩包体 橄榄岩包体 矿物学 矿物学

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GB/T 7714 颜雪 , 王力圆 , 陈洲鑫 et al. 福建新生代玄武岩及其地幔包体的矿物学特征——对岩石圈地幔性质的制约 [J]. | 吉林大学学报(地球科学版) , 2025 , 55 (02) : 463-482 .
MLA 颜雪 et al. "福建新生代玄武岩及其地幔包体的矿物学特征——对岩石圈地幔性质的制约" . | 吉林大学学报(地球科学版) 55 . 02 (2025) : 463-482 .
APA 颜雪 , 王力圆 , 陈洲鑫 , 张文慧 . 福建新生代玄武岩及其地幔包体的矿物学特征——对岩石圈地幔性质的制约 . | 吉林大学学报(地球科学版) , 2025 , 55 (02) , 463-482 .
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福建新生代玄武岩及其地幔包体的矿物学特征
期刊论文 | 2025 , 55 (2) , 463-482 | 吉林大学学报(地球科学版)
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福建新生代玄武岩广泛发育且携带了大量地幔包体,其矿物元素特征能够反演岩石圈地幔性质.本文对福建沿海的厦门及内陆地区的明溪、闽清等地新生代玄武岩及其橄榄岩包体中的矿物进行了电子探针、单斜辉石LA-ICP-MS微量元素和原位Sr同位素分析,探究福建地区岩石圈地幔属性特征及演化历史.结果表明:玄武岩及其橄榄岩包体中单斜辉石主要为透辉石,橄榄岩包体根据矿物学特征分为A、B两组,A组(Mg#>90)代表了古老难熔岩石圈地幔,B组(Mg#<90)代表了经改造后年轻饱满岩石圈地幔.A组橄榄岩包体中的单斜辉石高场强元素Nb、Ti轻微负异常,Hf、Zr、Ta强烈负异常.B组橄榄岩包体中的单斜辉石有所不同,高场强元素Zr、Hf轻微负异常,大离子亲石元素Ba强烈负异常.玄武岩斑晶和基质中的单斜辉石均呈现LREE富集、HREE亏损的特征,且单斜辉石斑晶边部比核部亏损高场强元素Th、Nb,富集大离子亲石元素Sr、Eu.橄榄岩包体中大部分A组和B组单斜辉石都经历了硅酸盐熔体交代,少数A组单斜辉石介于硅酸盐熔体交代和碳酸盐熔体交代之间.单斜辉石原位Sr同位素范围在0.702 57~0.703 67之间,大多单斜辉石边部的87Sr/86Sr值比核部要高,可能受到了高87Sr/86Sr值物质交代作用.福建橄榄岩包体很可能代表的是太平洋板块俯冲软流圈地幔经历减压上升后新改造的岩石圈地幔.

Keyword :

原位Sr同位素 原位Sr同位素 岩石圈地幔 岩石圈地幔 新生代玄武岩 新生代玄武岩 橄榄岩包体 橄榄岩包体 矿物学 矿物学

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GB/T 7714 颜雪 , 王力圆 , 陈洲鑫 et al. 福建新生代玄武岩及其地幔包体的矿物学特征 [J]. | 吉林大学学报(地球科学版) , 2025 , 55 (2) : 463-482 .
MLA 颜雪 et al. "福建新生代玄武岩及其地幔包体的矿物学特征" . | 吉林大学学报(地球科学版) 55 . 2 (2025) : 463-482 .
APA 颜雪 , 王力圆 , 陈洲鑫 , 张文慧 . 福建新生代玄武岩及其地幔包体的矿物学特征 . | 吉林大学学报(地球科学版) , 2025 , 55 (2) , 463-482 .
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Redefining timing, genesis and geodynamic setting of polymetallic skarn mineralization, Gangdese belt, Tibet, from LA-ICP-MS garnet U-Pb geochronology SCIE
期刊论文 | 2024 , 132 , 113-135 | GONDWANA RESEARCH
WoS CC Cited Count: 1
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Iron, Cu, Pb-Zn, and W-Mo skarn deposits occur in the Gangdese metallogenic belt, Tibet. A lack of precise age constraints for mineralization hinders understanding of the processes contributing to skarn mineralization, particularly identification of the causative intrusions. In this study, new garnet U-Pb geochronological data are provided for the Qiagong (Fe) and Jiaduobule (Fe-Cu) skarns. We place particular emphasis on skarn garnet mineralogy, using scanning electron microscopy (SEM), electron probe microanalysis (EPMA), and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS), to characterize garnet textures, compositions, and U-Pb isotope systematics. All garnets studied belong to the grossular-andradite series and display oscillatory compositional zoning (And 100 Gr 0 to And 20 Gr 80 ). Andradite-dominated garnet features a chondrite-normalized REE fractionation pattern exhibiting enrichment in LREE relative to HREE and a positive Eu anomaly, whereas grossular-dominated garnet displays relative LREE depletion and a marked flat HREE fractionation trend. Ore-forming elements, including Sn, W, As, and U, are detected at concentrations up to several hundreds of ppm in the same garnets. Concentrations of W and As are higher in andradite and correlate positively with one another. The correlation between U, Sn and the major oxide composition of garnet is insignificant, potentially resulting from the changing valence states of these elements under different redox conditions. Together with previously published and limited new data for the Gebunongba (Fe), Ri'a (Cu), and Hahaigang (W-Mo) skarns, the new garnet U-Pb age data indicate that the major Fe, Pb-Zn, and W-Mo mineralization event in the Gangdese metallogenic belt took place between 65 Ma and 50 Ma, with marked peaks at - 65 Ma and - 53 Ma. Partial melting of a crustal-dominated source due to the slab rollback (-65 Ma) and break off (-53 Ma) of Yarlug-Zangbo Tethyan Ocean and subsequent asthenosphere upwelling induced this regional event during the Paleogene to early Eocene. A less common but regionally widespread Cu (+/- Au) mineralization event in the same belt formed during the Late Cretaceous (-85 Ma) and may have resulted from the coupled influence of the northward subduction of the Yarlug-Zangbo Tethyan Ocean and the southward subduction of the Bangong-Nujiang Tethyan Ocean. This contribution highlights the potential significance of the Late Cretaceous Cu(+/- Au) event and hence the prospectivity of the belt for both skarn and porphyry systems. More broadly, our findings carry implications for Neo-Tethyan metallogeny in the region extending from southwestern China to eastern Europe during the Late Cretaceous. (c) 2024 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved.

Keyword :

Gangdese belt Gangdese belt Garnet Garnet LA-ICP-MS LA-ICP-MS Skarn Skarn Tibet Tibet U-Pb geochronology U-Pb geochronology

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GB/T 7714 Xu, Jing , Li, Jiadai , Cook, Nigel J. et al. Redefining timing, genesis and geodynamic setting of polymetallic skarn mineralization, Gangdese belt, Tibet, from LA-ICP-MS garnet U-Pb geochronology [J]. | GONDWANA RESEARCH , 2024 , 132 : 113-135 .
MLA Xu, Jing et al. "Redefining timing, genesis and geodynamic setting of polymetallic skarn mineralization, Gangdese belt, Tibet, from LA-ICP-MS garnet U-Pb geochronology" . | GONDWANA RESEARCH 132 (2024) : 113-135 .
APA Xu, Jing , Li, Jiadai , Cook, Nigel J. , Ciobanu, Cristiana L. , Wu, Shitou , Wade, Benjamin P. et al. Redefining timing, genesis and geodynamic setting of polymetallic skarn mineralization, Gangdese belt, Tibet, from LA-ICP-MS garnet U-Pb geochronology . | GONDWANA RESEARCH , 2024 , 132 , 113-135 .
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Redefining timing, genesis and geodynamic setting of polymetallic skarn mineralization, Gangdese belt, Tibet, from LA–ICP–MS garnet U–Pb geochronology Scopus
期刊论文 | 2024 , 132 , 113-135 | Gondwana Research
Tin-bearing magnetite with nanoscale Mg-Si defects: Evidence for the early stages of mineralization in a skarn system SCIE
期刊论文 | 2023 , 10 | FRONTIERS IN EARTH SCIENCE
WoS CC Cited Count: 4
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Tin-bearing magnetite is reported from several types of magmatic-hydrothermal ore deposits. The question of whether tin is incorporated within solid solution, as Sn4+, or as nanoinclusions remains open, however. We report a micron- to nanoscale investigation of Sn (Mg, Si)-bearing magnetite from serpentinite in the Dulong Zn-Sn-In skarn, South China, with the dual aims of understanding the mechanisms involved in accommodating Sn and associated elements into the Fe-oxide, and the inferences that this carries for constraining the early stages of skarn formation. Magnetite preserves a range of textures that record the evolution of metasomatism during prograde growth of grain cores and retrograde rim replacement. Observations reveal the presence of chondrodite and sellaite (MgF2) as nanoscale inclusions preserved in magnetite. This implies initiation of the Dulong mineralizing system during a humite-bearing, magnesium skarn stage. Magnesium-Si defects, forming along (110) planes prior to Sn-enrichment, are recognized for the first time. Release of high volatile, F-rich fluids is interpreted to lead to precipitation of cassiterite inclusions along < 111*> directions in magnetite.

Keyword :

cassiterite cassiterite crystal structure crystal structure Dulong Dulong HAADF STEM HAADF STEM humite group humite group magnetite magnetite skarn skarn

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GB/T 7714 Xu, Jing , Ciobanu, Cristiana L. , Cook, Nigel J. et al. Tin-bearing magnetite with nanoscale Mg-Si defects: Evidence for the early stages of mineralization in a skarn system [J]. | FRONTIERS IN EARTH SCIENCE , 2023 , 10 .
MLA Xu, Jing et al. "Tin-bearing magnetite with nanoscale Mg-Si defects: Evidence for the early stages of mineralization in a skarn system" . | FRONTIERS IN EARTH SCIENCE 10 (2023) .
APA Xu, Jing , Ciobanu, Cristiana L. , Cook, Nigel J. , Slattery, Ashley D. , Ehrig, Kathy , Wade, Benjamin P. et al. Tin-bearing magnetite with nanoscale Mg-Si defects: Evidence for the early stages of mineralization in a skarn system . | FRONTIERS IN EARTH SCIENCE , 2023 , 10 .
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Tin-bearing magnetite with nanoscale Mg-Si defects: Evidence for the early stages of mineralization in a skarn system Scopus
期刊论文 | 2023 , 10 | Frontiers in Earth Science
福建省新生代玄武岩40Ar/39Ar年代学及地质意义 PKU
期刊论文 | 2023 , 51 (1) , 118-124 | 福州大学学报(自然科学版)
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对福建省沿海至内陆出露的4件新生代玄武岩进行40 Ar/39 Ar年龄测试,对玄武岩中橄榄石斑晶进行电子探针测试;其中洋底和柳城玄武岩首次获得精确的40 Ar/39 Ar年龄数据.结果显示,闽西明溪40 Ar/39 Ar年龄数据为(1.44±0.11)Ma,柳城为(17.35±0.93)Ma;闽中洋底玄武岩年龄为(11.71±0.44)Ma;闽东厦门玄武岩年龄为(17.0±0.36)Ma.结合前人年龄数据,福建省新生代玄武岩整体表现出从闽东至闽西年龄逐渐减小的趋势.橄榄石斑晶电子探针数据显示闽东至闽西玄武岩碱性程度逐渐增加,可能指示岩浆熔融程度由沿海至内陆逐渐减少,岩石圈厚度由东向西逐渐增厚.最新获得的闽西柳城玄武岩40Ar-39Ar年龄为(17.35±0.93)Ma,与东部沿海玄武岩相似,推测可能是太平洋板块北西向俯冲时引起的岩浆扰动作用形成的.

Keyword :

40 Ar/ 39 Ar年龄 40 Ar/ 39 Ar年龄 地质意义 地质意义 新生代玄武岩 新生代玄武岩 橄榄石斑晶 橄榄石斑晶 福建省 福建省

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GB/T 7714 严率旗 , 张文慧 , 王力圆 et al. 福建省新生代玄武岩40Ar/39Ar年代学及地质意义 [J]. | 福州大学学报(自然科学版) , 2023 , 51 (1) : 118-124 .
MLA 严率旗 et al. "福建省新生代玄武岩40Ar/39Ar年代学及地质意义" . | 福州大学学报(自然科学版) 51 . 1 (2023) : 118-124 .
APA 严率旗 , 张文慧 , 王力圆 , 聂俊韬 . 福建省新生代玄武岩40Ar/39Ar年代学及地质意义 . | 福州大学学报(自然科学版) , 2023 , 51 (1) , 118-124 .
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福建省新生代玄武岩~(40)Ar/~(39)Ar年代学及地质意义 PKU
期刊论文 | 2023 , 51 (01) , 118-124 | 福州大学学报(自然科学版)
福建省新生代玄武岩~(40)Ar/~(39)Ar年代学及地质意义 PKU
期刊论文 | 2023 , 51 (01) , 118-124 | 福州大学学报(自然科学版)
Chronological and Mineralogical Records of the Langqi Pluton, Fuzhou: Constraints on the Magma Mixing Process SCIE
期刊论文 | 2023 , 13 (12) | MINERALS
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The mafic microgranular enclaves (MMEs) from Mesozoic intermediate-acid magmatic rocks, widely developed along the Fujian coast, are considered to be the results of large-scale crust- mantle interaction by magma mixing. This paper is based on zircon U-Pb chronology, along with zircon Hf isotope and mineral analyses for the host granite and MMEs from Langqi Island, in order to investigate the magma mixing mechanism of the Langqi pluton in Fuzhou, Southeast China. The results indicate that the MMEs were emplaced during the late Early Cretaceous (98.9 +/- 2.2 Ma), identical to the age of the granite (100.1 +/- 1.1 Ma) within the error range. The zircon epsilon Hf(t) values for the granite and MMEs are in the ranges of -2.1 similar to 0.0 and-1.7 similar to+1.1. The zircon Hf isotope data indicate that both the granite and MMEs were predominantly derived from the ancient crustal basement of Cathaysia, with a partial mantle-derived contribution. The An values of plagioclase phenocrysts with oscillatory zoning patterns in the MMEs show oscillatory changes from the core to the rim, indicating multiple mixing events between the two magmas with different compositions. Amphiboles in the MMEs show characteristics of crust-mantle contamination, and the Ti migrated from the mafic magma with high concentration to the felsic magma with low concentration during the magma mixing process. Biotites in the host rock and MMEs belong to primary biotite, and they have relatively high MgO contents (ave. 12.78 wt.%) and relatively low FeOT/(MgO + FeOT) ratios (ave. 0.56), showing characteristics of crust-mantle contamination. The crust-mantle magma interaction in a crystal, mushy state played a significant role in controlling the formation and evolution of the Langqi pluton. The magmatism was predominantly sourced from mixing between the mantle-derived mafic magma and the crust-derived felsic magma during the subduction of the Paleo-Pacific Plate, resulting in the formation of the Langqi doleritic veins, granites, and MMEs.

Keyword :

chronology chronology Langqi Island Langqi Island mafic microgranular enclaves mafic microgranular enclaves magma mixing magma mixing mineralogy mineralogy

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GB/T 7714 Chen, Zhouxin , Wang, Liyuan , Yan, Xue . Chronological and Mineralogical Records of the Langqi Pluton, Fuzhou: Constraints on the Magma Mixing Process [J]. | MINERALS , 2023 , 13 (12) .
MLA Chen, Zhouxin et al. "Chronological and Mineralogical Records of the Langqi Pluton, Fuzhou: Constraints on the Magma Mixing Process" . | MINERALS 13 . 12 (2023) .
APA Chen, Zhouxin , Wang, Liyuan , Yan, Xue . Chronological and Mineralogical Records of the Langqi Pluton, Fuzhou: Constraints on the Magma Mixing Process . | MINERALS , 2023 , 13 (12) .
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Chronological and Mineralogical Records of the Langqi Pluton, Fuzhou: Constraints on the Magma Mixing Process Scopus
期刊论文 | 2023 , 13 (12) | Minerals
Microbial mat, organic-wall microfossils and geochemistry of the Ediacaran inter-diamictite black sediments in NW China: A short-lived habitable benthic, oxic and photic "ice-free oases" SCIE
期刊论文 | 2023 , 401 | PRECAMBRIAN RESEARCH
WoS CC Cited Count: 1
Abstract&Keyword Cite Version(1)

Abstract :

The Ediacaran glaciation has garnered considerable attention for its potential biological impact because it witnesses the birth of complex animals. Many researchers question whether large-scale regional or even global glaciations, represent critical barriers to the evolution of macroscopic animals. So how did complex animals survive during a major glaciation? One possible explanation is the existence of isolated shallower refugia or icefree oases. However, the sedimentary evolution of such ice-free oases and how they could support the survival of complex life forms are not yet fully understood. This study focuses on the inter-diamictite black sediments in the Ediacaran Talisayi Formation of NW China (Yili block), which may represent a habitable ice-free oasis during the Gaskiers glaciation. The sedimentary facies and geochemical analyses indicate that these deposits were formed in oxygenated and photic shallow glacier lake environments with highly developed microbial mat substrates, it was formed during a short-lived partial deglaciation with enhanced weathering. And diverse organic-wall microfossils were found within the inter-diamictite black sediments. Furthermore, based on the growth habits of modern microbial algal mats, a paleontological clock can be established to estimate the duration of partial deglaciation, which may have lasted only for thousands of years. The ice-free oasis formed during this period could potentially harbor complex ecosystems, providing valuable ecological and temporal windows for the evolution of complex animals.

Keyword :

Ediacaran Ediacaran Gaskiers glaciation Gaskiers glaciation Ice free oasis Ice free oasis Microbial mat Microbial mat Partial deglaciation Partial deglaciation

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GB/T 7714 Zhang, Xinsong , An, Yanqing , Chen, Yarui et al. Microbial mat, organic-wall microfossils and geochemistry of the Ediacaran inter-diamictite black sediments in NW China: A short-lived habitable benthic, oxic and photic "ice-free oases" [J]. | PRECAMBRIAN RESEARCH , 2023 , 401 .
MLA Zhang, Xinsong et al. "Microbial mat, organic-wall microfossils and geochemistry of the Ediacaran inter-diamictite black sediments in NW China: A short-lived habitable benthic, oxic and photic "ice-free oases"" . | PRECAMBRIAN RESEARCH 401 (2023) .
APA Zhang, Xinsong , An, Yanqing , Chen, Yarui , Du, Weidong , Wang, Liyuan . Microbial mat, organic-wall microfossils and geochemistry of the Ediacaran inter-diamictite black sediments in NW China: A short-lived habitable benthic, oxic and photic "ice-free oases" . | PRECAMBRIAN RESEARCH , 2023 , 401 .
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Microbial mat, organic-wall microfossils and geochemistry of the Ediacaran inter-diamictite black sediments in NW China: A short-lived habitable benthic, oxic and photic “ice-free oases” Scopus
期刊论文 | 2024 , 401 | Precambrian Research
Crust-mantle interactions in Zijinshan ore field identified by zircon SIMS U-Pb age and zircon Hf-O isotopes SCIE
期刊论文 | 2022 , 160 (2) , 292-304 | GEOLOGICAL MAGAZINE
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This study presents zircon U-Pb geochronology and Hf and O isotope data for granitic rocks in the Zijinshan ore field, southwestern Fujian Province, China. The intrusive rocks comprise monzogranite, granite and granodiorite. The magmatic zircon U-Pb ages from these granitic rocks can be divided into four episodes: episodes 1 (157.9-159.9 Ma) and 2 (141 Ma) in the Late Jurassic and episodes 3 (108.1-103.2 Ma) and 4 (97.5-99.7 Ma) in the Middle and Late Cretaceous, respectively. Patterns of rare-earth elements (REE) show enrichment in light REE and obvious negative Eu anomalies. These rocks are also enriched in Rb, Th, U, La, Ce, Nd and Hf, and depleted in Ba, Nb, Sr, P and Ti. The increasing La/Yb ratio and decreasing heavy REE content with decreasing age may imply an increasing contribution of mantle-derived materials from the Late Jurassic to Cretaceous. The zircon epsilon (Hf)(t) and delta O-18 values, ranging from -37.7 to -2.8 and 12.0 parts per thousand to 6.3 parts per thousand, respectively, indicate that the lower crust is an important source of granitic rocks. There was a significant increase in epsilon (Hf)(t) values and a decrease in delta O-18 values in the younger magmatic episodes (3 and 4), which ranged from -11.4 to -0.6 and 10.7 to 6.3 parts per thousand, respectively. This suggests an increasing contribution of mantle-derived magma to the crustal melts from the Late Jurassic to late Early Cretaceous in response to the changing regional tectonic setting from compression to extension and an increasing interaction between the crust and mantle.

Keyword :

crust-mantle interactions crust-mantle interactions granite granite Hf-O isotopes Hf-O isotopes SIMS zircon U-Pb age SIMS zircon U-Pb age Zijinshan ore field Zijinshan ore field

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GB/T 7714 Zhang, Wen-Hui , Yan, Shuai-Qi , Wang, Li-Yuan . Crust-mantle interactions in Zijinshan ore field identified by zircon SIMS U-Pb age and zircon Hf-O isotopes [J]. | GEOLOGICAL MAGAZINE , 2022 , 160 (2) : 292-304 .
MLA Zhang, Wen-Hui et al. "Crust-mantle interactions in Zijinshan ore field identified by zircon SIMS U-Pb age and zircon Hf-O isotopes" . | GEOLOGICAL MAGAZINE 160 . 2 (2022) : 292-304 .
APA Zhang, Wen-Hui , Yan, Shuai-Qi , Wang, Li-Yuan . Crust-mantle interactions in Zijinshan ore field identified by zircon SIMS U-Pb age and zircon Hf-O isotopes . | GEOLOGICAL MAGAZINE , 2022 , 160 (2) , 292-304 .
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Crust-mantle interactions in Zijinshan ore field identified by zircon SIMS U-Pb age and zircon Hf-O isotopes EI
期刊论文 | 2023 , 160 (2) , 292-304 | Geological Magazine
Crust-mantle interactions in Zijinshan ore field identified by zircon SIMS U-Pb age and zircon Hf-O isotopes Scopus
期刊论文 | 2023 , 160 (2) , 292-304 | Geological Magazine
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